Thinking of maximum utilization of ad-space to deliver ads?.
IAB pushdown ad unit helps to deliver ad in a descriptive manner which inlcudes text box for advertiser slogan,text-area for product description,logo image,product image and teaser image.
IAB pushdown displays a teaser view of image initially,with a click on expand vertically option.
Clicking on trigger button will make IAB pushdown unit to slide-down vertically,which will make website content to move downwards.
Expanded area will show advertiser content.
Clicking close-trigger button will resets IAB pushdown unit back to original position.